Redeclaration of enumerator 'RETURN'

[Valeriy Klimin]

When compiling this on Pop!_OS 19.04 GCC errors out on this:

gcc -c -DCROSS_COMPILE -DIN_GCC     -g -O2  -DHAVE_CONFIG_H    -I. -I../../../../prc-tools-2.3/gcc295/gcc -I../../../../prc-tools-2.3/gcc295/gcc/config -I../../../../prc-tools-2.3/gcc295/gcc/../include ../../../../prc-tools-2.3/gcc295/gcc/c-lex.c
In file included from ../../../../prc-tools-2.3/gcc295/gcc/c-lex.c:31:
../../../../prc-tools-2.3/gcc295/gcc/c-parse.h:74:5: error: redeclaration of enumerator ‘RETURN’
     RETURN = 280,
     ^~~~~~
In file included from ../../../../prc-tools-2.3/gcc295/gcc/c-lex.c:24:
../../../../prc-tools-2.3/gcc295/gcc/rtl.def:503:14: note: previous definition of ‘RETURN’ was here
 DEF_RTL_EXPR(RETURN, "return", "", 'x')
              ^~~~~~
../../../../prc-tools-2.3/gcc295/gcc/rtl.h:41:51: note: in definition of macro ‘DEF_RTL_EXPR’
 #define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS)   ENUM ,
                                                   ^~~~
../../../../prc-tools-2.3/gcc295/gcc/c-lex.c:65: warning: "YYDEBUG" redefined
 #define YYDEBUG 1
 
In file included from ../../../../prc-tools-2.3/gcc295/gcc/c-lex.c:31:
../../../../prc-tools-2.3/gcc295/gcc/c-parse.h:41: note: this is the location of the previous definition
 # define YYDEBUG 0
 
In file included from ../../../../prc-tools-2.3/gcc295/gcc/c-lex.c:133:
../../../../prc-tools-2.3/gcc295/gcc/c-gperf.h:192:21: warning: ‘wordlist’ is static but used in inline function ‘is_reserved_word’ which is not static
             return &wordlist[key];
                     ^~~~~~~~
../../../../prc-tools-2.3/gcc295/gcc/c-gperf.h:189:36: warning: ‘wordlist’ is static but used in inline function ‘is_reserved_word’ which is not static
           register const char *s = wordlist[key].name;
                                    ^~~~~~~~
../../../../prc-tools-2.3/gcc295/gcc/c-gperf.h:185:26: warning: ‘hash’ is static but used in inline function ‘is_reserved_word’ which is not static
       register int key = hash (str, len);
                          ^~~~

[user5518]

There a newer version of gcc (9.1) for compiling Palm OS application. Have a look here, if you are still interested: https://palm2000.com/projects/compilingAndBuildingPalmOsAppsOnUbuntu2004LTS.php